Radiation Detector Weight Compensation via Counterweight Mechanism
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Solution Overview
Problem
In medical imaging systems, particularly Nuclear Medicine imaging, the movement of detector heads is hindered by their weight, leading to reduced image quality and potential collisions, and existing systems lack effective weight compensation, resulting in unsafe forces and operational inefficiencies.
Innovation Solution
A weight compensation unit is implemented, utilizing a counter-balanced weight system with pulleys and a spring mechanism to ease the movement of radiation detectors within movable sections of columns, reducing the gravitational force and preventing unsafe torque applications.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If detector heads are positioned radially advanced to avoid collisions and maintain imaging coverage, then imaging coverage is improved, but detector movement becomes problematic due to weight and collision risk
Solution Approach 1:
The patent applies a counterweight mechanism that generates a force opposite to gravity acting on the detector head. This counterweight reduces the net force required to move the detector head radially, making positioning easier and reducing the risk of collisions while maintaining imaging coverage.
2Measurement precision
If detector heads are moved closer to the subject to improve image quality, then image quality is improved, but collision risk and movement difficulty increase
Solution Approach 1:
The counterweight mechanism reduces the force required to move detector heads closer to the subject, enabling improved image quality without increasing collision risk. The counterbalancing force offsets gravitational effects, allowing precise positioning near the subject.
3Object-affected harmful factors
If detector heads are positioned at radial distance to avoid collisions, then collision risk is reduced, but setup time increases
Solution Approach 1:
The counterweight mechanism enables faster positioning of detector heads by reducing the force required for movement. This allows detectors to reach their operational positions more quickly while maintaining safe radial distances, thereby reducing setup time without increasing collision risk.
4Measurement precision
If detector heads are moved towards the subject, then image quality improves, but unsafe forces may be applied to the subject
Solution Approach 1:
The counterweight mechanism ensures that detector heads can be positioned close to the subject to improve image quality while the counterbalancing force prevents the application of unsafe forces. The counterweight offsets gravitational effects, allowing controlled movement without excessive force.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This solution enhances the ease of movement and positioning of radiation detectors, improving image quality, reducing the risk of collisions and unsafe forces, and simplifying the setup process while ensuring safe operation.
Implementation Method 1
A weight compensation unit applies a force on the movable section opposite to a force of gravity associated with at least the movable section and the radiation detector
Data Source
AI summary
An apparatus for capturing images is described herein. The apparatus may include a column attached to a gantry. The column may include a movable section and a radiation detector disposed in the movable section. The apparatus may include a weight compensation unit to apply a force on the movable section opposite to a force of gravity associated with at least the movable section and the radiation detector.